Beta Williamson County, TX only — data and coverage are limited during early access.

15501 INTERLACHEN DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath1,157 sqftBuilt 2007

Property at a Glance

This home is estimated between $352,397 and $879,748, with a best estimate of $809,740. That places the property below the L572601A - Avery Estates & GOLF CLUB @ AVERY RANCH median of $1,122,350, in a neighborhood that appreciated 11.4% over the past year.

Estimated Value Range

$352,397 $879,748
Best Estimate
$809,740
WCAD Value
$809,484
High Confidence

Based on 5 comparable properties(5 in the same subdivision)

Based on 5 comparable properties in L572601A - Avery Estates & GOLF CLUB @ AVERY RANCH, this home's estimated market value is between $352,397 and $879,748. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

15416 INTERLACHEN DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,677 sqft Built 2004
Raw Value $595,349
Adjusted Value $352,397

Adjusted -$242,952 for 520 sqft less living space. Net adjustment: -$242,952.

15420 INTERLACHEN DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 937 sqft Built 2011
Raw Value $776,961
Adjusted Value $879,748

Adjusted +$102,787 for 220 sqft more living space. Net adjustment: +$102,787.

15404 INTERLACHEN DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 947 sqft Built 2011
Raw Value $755,950
Adjusted Value $854,065

Adjusted +$98,115 for 210 sqft more living space. Net adjustment: +$98,115.

15536 INTERLACHEN DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
3 bed 2 bath 989 sqft Built 2010
Raw Value $731,248
Adjusted Value $809,740

Adjusted +$78,492 for 168 sqft more living space. Net adjustment: +$78,492.

15540 INTERLACHEN DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
3 bed 2 bath 989 sqft Built 2010
Raw Value $723,972
Adjusted Value $802,464

Adjusted +$78,492 for 168 sqft more living space. Net adjustment: +$78,492.

The Neighborhood

This home is valued 27.9% below the L572601A - Avery Estates & GOLF CLUB @ AVERY RANCH median of $1,122,350. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 11.4% over the past year.

L572601A - Avery Estates & GOLF CLUB @ AVERY RANCH

below average
146 Properties
$1,122,350 Median Value
+11.4% YoY Change
1% Have Pool
100% Have Garage
This Home
$809,484
Median
$1,122,350

This home is -27.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $15,150 across all districts. With a homestead exemption claimed, that drops to $12,757 — saving $2,393 per year. That's $1,063 per month a buyer should budget. The assessed value increased +15.4% vs the subdivision average of +11.4%. This above-average increase gives a protest opportunity score of 65 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Leander ISDSchool1.0869%$7,676
AustinCity0.5240%$3,701
Williamson CountyCounty0.3694%$2,609
Austin Community Collegespecial0.1034%$730
Williamson County FM/RdCounty0.0443%$313
Upper Brushy Creek WCIDWater0.0170%$120
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.1451%$15,150
65 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $809,740 would pay approximately $5,054 per month (principal and interest only, excluding taxes and insurance).

Data sourced from Williamson County Appraisal District (WCAD), Texas Education Agency (TEA), and Federal Reserve Economic Data (FRED). Assessment values reflect the appraisal district's estimate, not market sale prices. Report generated 4/18/2026.

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